/*
 * Copyright 2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.internal.scan.eob;

import javax.annotation.Nullable;

public class DefaultBuildScanEndOfBuildNotifier implements BuildScanEndOfBuildNotifier {
    private Listener listener;

    @Override
    public void notify(final Listener listener) {
        if (this.listener != null) {
            throw new IllegalStateException("Listener already registered");
        }

        this.listener = listener;
    }

    public void fireBuildComplete(@Nullable final Throwable failure) {
        if (listener != null) {
            listener.execute(new BuildResult() {
                @Nullable
                @Override
                public Throwable getFailure() {
                    return failure;
                }
            });
        }
    }
}
